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Important Characteristics Information

Portfolio characteristic data are based on unaudited net assets.

The portfolio is actively managed, and current holdings may be different.

Portfolio characteristics are based on equivalent exposure, which measures how a portfolio's value would change due to price changes in an asset held either directly or, in the case of a derivative contract, indirectly. The market value of the holding may differ.

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Cash and other assets are less liabilities.

Definitions

Alpha: Alpha is a measure of the portfolio's risk-adjusted performance. When compared to the portfolio's beta, a positive alpha indicates better-than-expected portfolio performance and a negative alpha worse-than-expected portfolio performance.

Beta: Beta is a measure of the volatility of a portfolio relative to the overall market. A beta less than 1.0 indicates lower risk than the market; a beta greater than 1.0 indicates higher risk than the market. It is most reliable as a risk measure when the return fluctuations of the portfolio are highly correlated with the return fluctuations of the index chosen to represent the market.

Information Ratio: Information ratio is a measure of consistency in excess return. The annualized excess return over a benchmark divided by the annualized standard deviation of excess return.

R-squared: R2 represents the percentage of the portfolio's movements that can be explained by the general movements of the market. Index portfolios will tend to have values very close to 100

Sharpe Ratio: The Sharpe Ratio is a risk-adjusted measure calculated to determine reward per unit of risk. It uses a standard deviation and excess return. The higher the Sharpe Ratio, the better the portfolio's historical risk-adjusted performance.

Standard Deviation: Standard deviation is an indicator of the portfolio's total return volatility, which is based on a minimum of 36 monthly returns. The larger the portfolio's standard deviation, the greater the portfolio's volatility.

Tracking Error: Tracking error is the active risk of the portfolio that measures the dispersion of the portfolio's return minus the benchmark's annualized return.

Treynor Ratio: Treynor Ratio is a risk adjusted measure of performance. It is the ratio of the annualized excess return of the portfolio over the risk free rate for a given period divided by the Beta of the portfolio versus its benchmark for the same period. It measures the amount of excess return over the risk free rate earned per unit of systematic risk (beta) assumed.

Upside / Downside Capture %: The upside and downside capture is a measure of how well a manager was able to replicate or improve on phases of positive benchmark returns, and how badly the manager was affected by phases of negative benchmark returns. To calculate the up capture, we first form new series from the manager and benchmark series by dropping all time periods where the benchmark return is zero or negative. The up capture is then the quotient of the annualized return of the resulting manager series, divided by the annualized return of the resulting benchmark series. The down capture is calculated analogously.

Weighted Average IBES Long Term EPS Growth: Weighted Average IBES Long Term EPS Growth sourced from: Thomson Reuters.

Weighted Average Market Cap: Market capitalization is the value of a corporation as determined by the market price of its issued and outstanding common stock. It is calculated by multiplying the number of outstanding shares by the current market price of a share.

Weighted Average Price/Book: Price/book ratio (P/B) is the ratio of a stock's price to its book value per share.

Weighted Average Price/Cash Flow: Price-to-cash-flow is the ratio of a stock's price to its per-share cash earnings.

Weighted Average Price/Earnings (12 months forward ex-negative earnings): Price/earnings ratio (P/E) is the price of a stock divided by its earnings per share.

Weighted Average Price/Sales: Price/Sales Ratio (P/S) is the ratio of a stock's price to its per-share sales.

Weighted Median Market Cap: Weighted Median Market Cap is the Market Capitalization of the firm defined by the median dollar within the distribution of the market capitalization of all companies in the index or portfolio. It is calculated from a running total of market capitalizations from smallest company to largest. The Market Capitalization of the firm that sorts the total dollar value of all market capitalizations into two equal portions defines the value.

This publication is authorized for distribution only when preceded or accompanied by a prospectus, or summary prospectus, for the portfolio being offered. Consider the fund's investment objectives, risks, charges and expenses. Contact MFS or view online. Read it carefully.